Developing-tank.



J. H.--DROSSER.

DEVELOPING TANK. 7 APPLICATION FILED SEPT. 25, 1912.

Patented Oct. 14, 1913.

l l l I I l II. l l I I l I I I l l I I ll INVENTOR ff 0530518677 87 MM; 96,

A7TORNV8 W a u WIT/(E8858 5. Cl. 8

' and an end 3, connecting one end of the I new b nc ienesiaa lme aavatem eaam L lli-5,995

. emana on atonem n- Applicatiomfled Septcmhenfi 1.912. (Serialllo. 722,244.

Toall whom it may concern: i 't-known that-II, JQSEP-H D nossnR, a citizen of the Uni-ted States, and-aresi-i dent of Douglas, in the county o f-Ooehisei ahd state of Arizona, have inventedcertaini n w :andhseful Improvements in Develop-i ir ig 'lanks, of-wvhiehthefollow-ing is a speciinvention-is an improvement in developingtanks, andzhas for its object, the pro-% vision of a main tankfor holdin water, and;

so arranged that a continuousow of (1091-;

-ingliquid may he passedthrough the main tank duringthe operation,-t ether witha plurality of auxiliary tanks r containing the various fluids, supported in the main; tank, and means in connection with the main tank for holding one of theauxiliary tanks.

oupside of the main-tank;

n the drawin s: Figure-l'is a pers ect-i-ve View of the iinprovedtank; -'g. 2 is a transverse vertical section of the am t k; 3 15 a perspective view firom above,

with the auxiliarytanks removed; and-Fi 4 1s a perspectiveview of a rack for use wit. the improved tank,

The present embodiment of the. invention conslsts of a main tank 1 of suitablemater al, as forinstance sheet iron or tin, or the like, having an open top, and having at the top a. frame of meta-1 or the like, the sa frame consisting of integral side pieces 2,

said side pieces, each of the'said side pieces extendin beyond-themain tank at the 'opposite on ,as shownat 4:, and having an inwardly extending lateral lug 5 atits ext'rernity.

'Theupper edge of: thematerial forming the main tank is bent outward and downwardly overthe frame, as shown at 6,;to cover that-portion oftheflsaid 'frame adjacent to the tank. The frame is secured to the sides and one end .of-the main tank in; any suitable manner, as for instance by;

means of rivets 7. lhe main tank is .also

provided with oppositely .arranged handles; 8, eachof which isin the form of a s lit;

bearing 9 secured to the-side of. the tank.

The main tank isprovided with aplural-g :ity of partitions 1Q, the said-partitions being arranged transversel of the tank, and

having their upper and ower edges spaced apart -from'the top and the bottom offthe tank respectively. The artitions are so an rangedthateach pair 0? guideway for receiving an auxiliary tank, of which there are :iou-r in the present instance. :Eaeh ofthe a-uiril-ialytanksl'l, 12,

:13 and 14 is provided-with a laterally extending: marginal flange 15 at its upper edge,

for engaging-the upperedgesofthe main tank, to limitthe downward movement of the. auxiliary tank in the main; tank. Three vguicleways are provided within the main tank, andthree of the auxiliary tanks may :he supported in the three pairs of guideways. lhe fourth tank 14 is supported by-the extensions 4: andthe lngs' 5 at one end of the. main tank. The aux liary tanks are of the samedimensions, sh that-they may be interchanged, and) the upper edge of etenteeQ t-' 4 9.

partitions terms a the main .tankadjacent to the extensions 4 is I flanged downwardly, as shown at 16in Fig.-

2, to. space the ontsidetank away from the adjacent end wall of the maintank.

In operation, the tank 11 is for containing the developi fluid, and. the tank 12, that is the center tan is for rinsing, and the said tank. is provided at each end with a plurality of openings 17, onenear the. top and one near the. b0ttOm,fillld the others on each side of therniddle of the said tank, so that the Water can flow from the main tank through the auxiliary tank 12 to thoroughly rinse and. wash the films or. plates. The tank 13 is for containing the fixing fluid, while the tank 14 is for .washin .the plates or films after they-have been fixed. The said tank 14 is arranged outside of the main tank, in order that a colder fluid may he used, and the said tank 14 is provided with openings L8..and 19, the. opening 18 being at the top, and.- the opening! 1 9 at the bottom; The coolingdluid entersat the lower opening: 159- and leaves; the tank at theupper opening 18.

-It will beevident that the improved tanks are of: any desired size, depend ng upon the use tocwhich they-9 19 .110 be put, and they lmaiin tank is :fillfld. with-water. with the auxi1- dled but once, and when a .rack is used, since with the plates or films in place in the rack,*'

they may be transferred from tank to tank without removing them from the rack, that is the plates or films may be placed in tank 11 in the racks, and may be handled without removing them from the racks, the tanks being shaped and of a size to fit the racks. The main tank 1 is also provided with an outlet openin 20 for permitting the same to be draine and a cover 21 is also provided for closing the top of the same, the said cover fitting down upon the.

tops of the auxiliary tanks and closing them as well as the top of the main tank. In Fig: 4 is'shown a rack'for supporting the plates while they are being acted upon.

The rack shown is intended for use with films, and the said rack consists of end frames 23 of wire or the like, and substantially rectangular in form, each having at its upper end an open ring or loop 24, for grasping to handle the rack. The end frames 23 are connected at spaced intervals by holders 25, each of the said holders being formed from wire, and consisting of a single wire connecting the adjacent side members of the frames and having connected with each of the said wires a plurality of laterally extending tongues. The films are arranged between the tongues and the said tongues of the several holders register with each other as shown. Any preferred form of rack may be used, the above form being shown as a convenient form.

I claim 1. A device of the character specified, comprising a main tank, pairs of partitions arranged transversely of the main tank, the members of each pair being spaced apart laterally from each other to form a guideway, said partitions stopping short of the top and bottom of the tank to permit the Q free circulation of the fluid beneath and above the partitions, a plurality 'of auxiliary tanks, sundr of the said tanks being arranged within t e guideways, each auxiliary tank having a lateral flange at its upper end for engaging the upper edge of the main tank to limit the downward movement of the auxiliary tank, said auxiliary tanks being of lesser depth than the main tank, 'so that a space will be left between the bottoms thereof and the bottom of the main tank, one of the auxiliary tanks having a series of openings at each end to permit the entrance and exit of fluid from the main tank, said main tank having longitudinally extending arms at one end, each arm having a lug at its free end, said extension and lugs forming a guideway for another auxiliary tank, said last-named auxiliary tank having an inlet opening near its bottom and an outlet opening near its top, handles on the main tank, and a cover for closing the tops of the main tank and the auxiliary tanks.

2. A device of the character specified, comprising a main tank, pairs of partitions arranged transversely of the main tank, the members of each pair being spaced apart laterally from each other to form a guideway, said partitions stopping short of the top and bottom of the tank to permit the free circulation of the fluid beneath andabove the partitions, a plurality of auxiliary tanks, sundry of the said tanks being arranged within the guideways, each auxiliary tank having a lateral flange at its upper end for engaging the upper edge of the main tank to limit the downward movement of the auxiliary tank, said auxiliary tanks being of lesser depth than the main tank, so that a space will be left between the bottoms thereof and the bottom of the main tank, one of the auxiliary tanks having a series of openings at each end to permit the entrance and exit of fluid from the main tank, means at one end of the main tank for supporting one of the auxiliary tanks outside of the main tank, said last named auxiliary tank having an inlet opening at its bottom and an outlet opening at its top. I

3. A device of the character specified, comprising a main tank, said main tank having a plurality of guideways for holding the auxiliary tanks in spaced relation, said main tank having means at one end for supporting another auxiliary tank outside the mam tank, auxiliary tanks in the guide ways and in the supporting means, said tanks bein of lesser depth than the main tank and aving means for engaging the upper edge of the main tank to space their bottoms above the top of the main tank, one of the auxiliary tanks having a series of perforations at each end, and the tank in the supporting means having openings near its top and bottom.

4. A device of the character specified, comprising ,a main tank having a plurality of guideways for holding auxiliary tanks, said main tanks having means at one end for supporting other auxiliary tanks outside the main tank, and auxiliary tanks supported in the guideways and'in the said supporting means, each of the said tanks lateral inwardly extending 1,o75,9o5 I 3 having lateral flanges at its upper end for engaging the top of the main tank or for engaging the supporting means to support the said tank.

5. A device of the character specified, comprising-a main tank having a plurality of guideways for holding auxlliary tanks, said main tank having means at one end porting means.

for supporting other auxiliary tanks outside the main tank, and auxiliary tankssup- 10 ported in the guideways and in the said sup- JOSEPH H. DROSSER. Witnesses:

En. GLEASON,

- BLAND BALLARD. 

